Range draft control



R. C. LANG RANGE DRAFT CONTROL May 3, 1949.

2 Sheets-Sheet 1 Filed June 14, 1946 I x I mm wm 7 flm T m 7 7 6 W 4 2w 3 5 w w 6 M R. q. LANG RANGE DRAFT CONTROL I May 3, 1949.

Filed June 14, 1946 2 Sheets-Sheet 2 Patented May 3, 1949 RANGE DRAFT CONTROL Robert C. Lang, Kalamazoo, Mich., assignor to Kalamazoo Stove & F

Mich.

urnace 00., Kalamazoo,

Application June 14, 1946, Serial No. 676,788

3 Claims.

This invention relates to improvements in range 5 draft control.

The principal objects of this invention are: First, to provide a wood or coal burning range with draft and heat control dampers on the rear wall thereof so that the front of the range will have a neater appearance, more closely resembling a gas or electric range.

Second, to provide control linkage for the draft and heat control dampers of a range permitting the operating handles to be positioned on the side of the range.

Third, to provide control linkage for the dampers of a range which will be effectively concealed between the top of the range and th decorative end panel.

Other objects relating to the details and economies of the invention will be apparent from the following description.

In the drawings, of which there are two sheets:

Fig. 1 represents a. plan view partially broken away of a range having my system of damper controls installed thereon.

Fig. 2 represents an end elevational view of the range shown in Fig, 1 with the top panel cut away.

' Fig. 3 represents an enlarged plan view of the control mechanism shown in Fig. 1.

Fig. 4 represents a perspective view from the rear corner of the range showing the damper control mechanism as installed thereon.

Fig. 5 represents a cross-sectional view taken along the line 5-5 in Fig. 3. I

The stove or range on which the controls are installed consists of a sectional top member I supported on the front frame member 2, rear frame member 3 and end frame member 4. Fire-pot panels 5 are positioned in one end of the range and the upper wall 6 of an oven positioned in the center of the range coacts with the range top, front and rear frame members to form a flue I through which the hot gases from the fire are directed to reach the smoke chamber 8 positioned on the back of the range. The details of construction of the ranges are more particularly described and claimed in the copending application of James M. Cook, Shirly C. Salter, and myself, Serial No. 684,560, filed July 18, 1946, owned by the same assignee. purpose of this application it is suflicient to state the flue 1 extends around the top, side, and bottom of the oven 6 and communicates with the smoke chamber 8 through a constantly open passage at the bottom of the oven For the and through an'upper passage opening over the top of the oven and controlled by the damper 9.

The end of the range is closed by a decorative end panel II and a rear panel I2 which latter panel defines a flanged draft opening I controlled by the damper I3. By means of these dampers, air may be admitted to the bottom of the combustion chamber and the hot gases may be directed around three sides of the oven or by-p-assed directly into the smoke chamber.

A bracket I4 is secured to the rear wall of the range and pivotally supports one end of the oven heat control shaft I5. Secured to the end of the shaft I is a U-shaped lever l6 provided with the crank arm I I. The crank arm I I is pivotally connected with a link I6, the other end of which is connected to the L-shaped lever I9, non-rotatably secured to the oven damper shaft 26. The oven damper 9 is provided with ears secured to the shaft so that rotation of the shaft will open or close the damper. The opposite end of the oven heat control shaft I5 is pivotally supported in the end frame member 4 and has a crank 2| securely fastened thereto.

A second bracket 22 is secured to the rear wall of the range and pivotally supports the draft control shaft 23. One end of the shaft 23 is shaped in the form of a crank 24, the arm of which is pivotally connected to the draft link 25 extending downwardly to the crank arm 26 formed on the draft damper l3. The damper I3 is formed as a stamping and is provided with a flanged edge 21, the ends of which are bent backwardly and apertured to pivotally support the damper on the shaft 28. The shaft 28 is supported between the legs of the U-shaped bracket 29 welded to the rear wall I2 of the furnace. The opposite end of the draft damper control shaft 23 has the crank member 3!! nonrotatably secured thereto.

An oven heat control push-rod 3| is pivotally connected to the crank 2| and a draft control push rod 32 is pivotally connected to the crank 30. The push rods 3! and 32 extend forwardly along the side frame member 4 and underneath the end of the range top I. Near their forward ends the push rods are provided with depending fingers 33 terminating in horizontally extending flanges 34 which extend outwardly through the slot between the range top I and the decorative end panel II. Suitable control knobs 35 are secured to the ends of the flanges 34 and appropriately marked as indicated in the drawings. The bodies of the push rods are embossed in stiffening ridges 36.

"flange of the angle bracket is cut awayand passed outwardly toward the end of the range in a seriesiof ears to :form damper control stops 38 and draft control stops 139. The stops :38 have horizontal portions which support the forward end of the damper control rod 3| and engage the finger 33 thereon to limit the forward and rearward movement of the damper control i izitl. Vertical portions of the stops retain and-space the damper control rod from-the draft .ctnnm rod 32. The stops 39 are bent further out fidni the end frame of the range and retain the fprward end of the draft control fed place. The vertical flange of the bracket 31 is pressed butwardly from the range between the draft stops as at '40 to form the back oi a slot in which the draft control rod is slic'lable.

The controls are thus arran ed so that pushing back on the draft knob will raise "the draft darnp'er to .admit air to the fire chamber and pushing the damper control rod back will open the oven heat control damper to by-pass the not gases intoth'e' snioke chambert.

U The arcuate portion 4| on the crank 30 is provided with an'arcuat'e s10: :12 throu hwhich the bolt #3 extends'to the bracket'22. The bolt is" used for loading the spring '4! tofrictionally holdthe draift damper "T3 in any J-posl-tioriof ad'- jiistn'ient. I I V "Having "thus" de cnbamy invention, what I claim new and desire to secure by Letters Patentis; I I

1. A solid fuel burning range comprising an end fran-re' member, a rear panel member defining an air "inlet passage a smoke outlet passage, a pair of dampers positioned on said rear panel member for closing said =-passages, linkage for operating said 'dan'ipers' supported upon said panel member, control rods for selet'r'ti'vel-y act ating saiidliri'kag and positioned atone said end time member and-having defingers on the fdrward end-s thereof, a

hraicktbf -ai"'igleshaped cross-section secured-to end name member and s pp rting said fingers upon its lower flange; a pair of stop members bent nemuie vanish fl nge of Sam bracket and arranged to engage the anger on are or said 'eiinm rods to limit the movement thereof, andanother pair of' stop menibers' bent the serum flangeor said nracleet ane ar ranged to limit the movement of the finger on the other of said control rods, said pairs of stop members being spaced in different planes to retain the forward ends of said control rods in spaced parallel relationship.

2. The combination with a solid fuel burning range having an end frame member with a top .n-iembet and end "c1osurepanel seasoned thereon, of a down turned flange on said top member terminating in substantial flush vertically spaced relationship with said end panel, an air inletda'mper positioned on the rear of said range, a smoke by-passdamper positioned on the rear or 'said-lranga'linliag'es for operating said dampers including a pair of control rods positioned along said end 'frame member and. between said top 'mem ber and end panel, said control rods having fingers extending outwardly of said range between said flange and said end panel and near the forward end thereof, and control knobs positioned on theends of said fingers. w

3. The combination with a solid iu-elburning range having-an enddrarrieniemberwith a top member and end closure" panel s'upp'orted'tl'iereon, of a down flange on said' top meniber terminating in substantial fins-h vertical-1y spaced reiationship with'said end pane-l, an air inlet damper pc I oiled on the rear of said range, a smoke b'y-pas's' damper positioned on the rear of said range; linkages for operating Said. dampers including a pair of central rods positioned along said end name member and between saiatep riierfib'r anaenemner said control rods having fingersoveily-ingthe'top of said end panel and extending outwardly of said range between said flange and said end panel and near the forward end thereof,andcontrol k-r'iobs positioned *on' the nds'of; said fingers.

RGBERT C. LANG.

REFERENCES CITED following references arts-of record in the file of this patent;

TUNJ'I-ED sava es PATENTS Number Name lliate 783,834 Hayes I jeb. "28', 1.905 1007,39? smith l Oct. 3 1, 1911 nsane Birch Feb. 18, 1913 243 3 4; w uodtl ll, 193,8 2,143,6 l0 -gncia Jan. 10, 1939 2,154,008 P erce Aer. 1-1, 11939 $258,373 Whitdfil. 061337, 1941 

